ASUS UX533F overheating and fan off with Ubuntu 20.04 LTS

Bug #1880012 reported by Sylvain Vedrenne on 2020-05-21
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Undecided
Unassigned
thermald (Ubuntu)
Undecided
Unassigned

Bug Description

After installing Ubuntu 20.04 LTS, my laptop's temperature goes fairly high without intensive CPU activity. The fan(s) remain **off** under heavy CPU load and the temperature goes very high.

I don't suspect a material failure since I didn't notice such overheating issues anymore with my previous Ubuntu (19.04) (after using sudo prime-select intel).

**Config**

- ASUS UX533FN

- BIOS version 304 (up-to-date)

- Kernel: 5.4.0-31-generic (same issue with 5.4.0-29)

- NVIDIA GeForce MX150 (with latest NVIDIA driver)

Low CPU load
============
Without running anything special, I get the following figures with `sensors` command:

...
pch_cannonlake-virtual-0
Adapter: Virtual device
temp1: +49.0°C

BAT0-acpi-0
Adapter: ACPI interface
in0: 15.60 V

asus-isa-0000
Adapter: ISA adapter
cpu_fan: 0 RPM

coretemp-isa-0000
Adapter: ISA adapter
Package id 0: +50.0°C (high = +100.0°C, crit = +100.0°C)
Core 0: +49.0°C (high = +100.0°C, crit = +100.0°C)
Core 1: +48.0°C (high = +100.0°C, crit = +100.0°C)
Core 2: +48.0°C (high = +100.0°C, crit = +100.0°C)
Core 3: +50.0°C (high = +100.0°C, crit = +100.0°C)

acpitz-acpi-0
Adapter: ACPI interface
temp1: +49.0°C (crit = +103.0°C)

These figures are a too high in my opinion for low CPU load with a room temperature of 20°C.

But here come's worse:

Heavy CPU load
==============
When the CPU is under load, for instance when running `sysbench cpu run` in loop, the temperature increases to 90°C, and no fan is triggered!

To get a repeatable CPU load test, I run

while true; do echo "One more time..." && sysbench cpu run; done

Here are the figures I get in this case (from `sensors` command):

...
pch_cannonlake-virtual-0
Adapter: Virtual device
temp1: +65.0°C

BAT0-acpi-0
Adapter: ACPI interface
in0: 15.60 V

asus-isa-0000
Adapter: ISA adapter
cpu_fan: 0 RPM

coretemp-isa-0000
Adapter: ISA adapter
Package id 0: +88.0°C (high = +100.0°C, crit = +100.0°C)
Core 0: +88.0°C (high = +100.0°C, crit = +100.0°C)
Core 1: +70.0°C (high = +100.0°C, crit = +100.0°C)
Core 2: +72.0°C (high = +100.0°C, crit = +100.0°C)
Core 3: +72.0°C (high = +100.0°C, crit = +100.0°C)

acpitz-acpi-0
Adapter: ACPI interface
temp1: +86.0°C (crit = +103.0°C)

Note 1: The temperature in the room for this test is 20°C.

Note 2: I got almost the same issue one year ago with Ubuntu 19.04 and used the sudo prime-select intel workaround.

What I already tried
====================
- installing the latest NVIDIA driver, including selecting `intel` with `prime-select` ameliorated the situation but didn't tackle the issue

- running `sensors-detect` (YES to all questions) resulted in `coretemp` to be added to `/etc/modules`

- running `pwmconfig` didn't work:

/usr/sbin/pwmconfig: There are no pwm-capable sensor modules installed

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-31-generic 5.4.0-31.35
ProcVersionSignature: Ubuntu 5.4.0-31.35-generic 5.4.34
Uname: Linux 5.4.0-31-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: sylvain 1710 F.... pulseaudio
 /dev/snd/pcmC0D0p: sylvain 1710 F...m pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Thu May 21 20:58:45 2020
InstallationDate: Installed on 2020-05-08 (13 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 002: ID 13d3:56cb IMC Networks USB2.0 HD IR UVC WebCam
 Bus 001 Device 003: ID 8087:0aaa Intel Corp.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: ASUSTeK COMPUTER INC. ZenBook UX533FN_UX533FN
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-31-generic root=UUID=1fba935a-ac77-4cdb-bc3a-d3ce26e567d9 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-5.4.0-31-generic N/A
 linux-backports-modules-5.4.0-31-generic N/A
 linux-firmware 1.187
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/16/2019
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: UX533FN.304
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UX533FN
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX533FN.304:bd10/16/2019:svnASUSTeKCOMPUTERINC.:pnZenBookUX533FN_UX533FN:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX533FN:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.family: ZenBook
dmi.product.name: ZenBook UX533FN_UX533FN
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.

Revision history for this message
Sylvain Vedrenne (bludzee) wrote :
affects: ubuntu → linux (Ubuntu)
Revision history for this message
Ubuntu Kernel Bot (ubuntu-kernel-bot) wrote : Status changed to Confirmed

This change was made by a bot.

Changed in linux (Ubuntu):
status: New → Confirmed
Revision history for this message
Sylvain Vedrenne (bludzee) wrote :

The fan is working when booting with the Live-USB I used to install Ubuntu 20.04

The Linux kernel from the Live-USB is
Linux ubuntu 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
in case it makes any difference.

Revision history for this message
Sylvain Vedrenne (bludzee) wrote :

Attaching ubuntu-style information for the case that works fine where the laptop was booted from the Live-USB.

Revision history for this message
Sylvain Vedrenne (bludzee) wrote :

Since then, I more or less remember the operations I performed with my laptop Ubuntu 20.04 install, I think it might be:
- uninstall and purge NVidia proprietary driver
- (re-)install the NVidia proprietary driver
- downgrade then re-upgrade the Linux kernel

and the overheating and fan off problem mysteriously vanished.

Now I find the temperature of my ASUS UX533F is fine, even with high workload, and I can hear the fan running when needed (when the temp. is higher than 50°C or so).

But I still have the following (minor in my opinion) issue: sensors still shows the fan RPM 0 all the time.

Since I don't know how the problem disappeared, I cannot say it is "fixed" and it might come back.
Still, I thought it was worth mentioning.

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